EARLY DAYS AND EARLY WAYS 19 



one, a nursery has been developed around the nipples, 

 recalling the pouch of the marsupials. Herein the young 

 one is snugly tucked away during the mother's aerial 

 excursions. 



From what obtains among the bats one might naturally 

 suppose that the so-called Flying-squirrels — which by the 

 way do not fly, but glide In a downward direction through 

 the air, supported by folds of skin stretched between the 

 limbs and body- — would similarly carry their young : 

 the more so because of the difficulty one might imagine 

 they would find in returning to any particular tree which 

 might be selected as a nursery. But as a matter of fact 

 they do not, but build nests to serve as nurseries. Those 

 fantastic-looking creatures, the flying lemurs, or Cobegos 

 (Galeopithecus), however, have adopted the plan followed 

 by the bats, and carry their single young one attached to 

 the under side of the body, as may be seen in our illustra- 

 tion. Dr. Alfred Russel Wallace describes how he shot 

 a female cobego to the breast of which was attached a 

 small, blind, naked young one ; but neither he nor any 

 other naturalist seems to have discovered how long this 

 condition of helplessness endures. 



It is a curious fact that in all the cases so far mentioned, 

 when the young are carried, this burden is undertaken 

 by the female alone : among the mammals, indeed, the 

 male rarely takes any part in the work of tending the 

 offspring. 



The only other mammals which habitually carry their 

 offspring are the members of the order Primates, which 

 includes man, the apes and monkeys, and the lemurs. 

 Among savage peoples, at any rate, the male never, so 

 far as is known, bears any share in the transport of his 

 children. Human babies, however, unlike those of their 



